NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Units and Dimensions
NEET · Physics · Units and Dimensions
Assertion (A): Mass, volume and time may be taken as fundamental...
Assertion (A): Mass, volume and time may be taken as fundamental quantities in a system of units.
Reason (R): Mass, volume and time are independent of one another.
Options
- AAssertion (A) is true, Reason (R) is true; Reason (R) is a correct explanation for Assertion (A).
- BAssertion (A) is true, Reason (R) is true; Reason (R) is not a correct explanation for Assertion (A).
- CAssertion (A) is true, Reason (R) is false.
- DAssertion (A) is false, Reason (R) is true.
Correct answer
A. Assertion (A) is true, Reason (R) is true; Reason (R) is a correct explanation for Assertion (A).
Step-by-step solution
Assertion (A):
"Mass, volume and time may be taken as fundamental quantities in a system of units."
This is false, because volume is a derived quantity (volume length ). Fundamental quantities are like mass, length, time, etc.
Reason (R):
"Mass, volume and time are independent of one another."
This is true, because mass, volume, and time are indeed independent physical quantities (though volume is derived, it is still independent of mass and time).
Correct Answer: (4) Assertion (A) is false, Reason (R) is true.